more clean ups
don't need to check AMO for addon updates
fix another lock initialization
don't remove internal search engine
use non-reserved var name
use &brandShortName for menu.help.homepage entity
"resource:app" isn't supported anymore
more clean ups, add class names to some components
remove duplicate LibraryServicePaneService and fix entry for another
try to loader playlist readers and device components
this isn't needed
delay library manager and play queue loading, try to load cd device marshal
load local database library loader at app-startup